CN102701788B - Organic-inorganic hybrid solution type water repellent for surfacers of building materials and preparation process thereof - Google Patents
Organic-inorganic hybrid solution type water repellent for surfacers of building materials and preparation process thereof Download PDFInfo
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- CN102701788B CN102701788B CN201210135837.8A CN201210135837A CN102701788B CN 102701788 B CN102701788 B CN 102701788B CN 201210135837 A CN201210135837 A CN 201210135837A CN 102701788 B CN102701788 B CN 102701788B
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Abstract
The invention relates to an organic-inorganic hybrid solution type water repellent for surfaces of building materials and a preparation process thereof. The organic-inorganic hybrid solution type water repellent for surfaces of building materials is characterized by being prepared by raw materials including 5-20 parts of silicate, 5-10 parts of alkoxy silane, 70-90 parts of water and the like. The organic-inorganic hybrid solution type water repellent for surfaces of building materials has the advantages of environment-friendly property, simple process and excellent water proofing performance.
Description
Technical field
The present invention relates to water-resisting agent that a kind of building material surface uses and preparation method thereof, particularly a kind of hybrid inorganic-organic solution-type water-resisting agent and preparation method thereof.
Background technology
China is for the investment increasing year by year of construction work aspect, and in project total cost, the ratio of waterproofing work cost is up to 15% left and right at present, although drop into so greatly, waterproof effect is unsatisfactory, new construction then percolation ratio in 10% left and right.
Existing water-resisting agent mainly contains organosilicon and two kinds of water-resisting agents of inorganic silicate.Waterproofing agent of organosilicon mainly comprises methyl siliconic acid salt brine solution, organic silicon solvent type water-resisting agent, active organosilicon fat liquor, and their shortcoming is: emulsion is unstable, contain a large amount of volatile organic matters, alkali resistance is poor.Inorganic silicic acid salt water-repellent is mainly water glass class water-resisting agent, under the effect of four alum auxiliary agents, uses, and leak stopping simple to operate is rapid, but the waterproof membrane fragility of its formation is large, and non-deformability is low, and toxicity is larger.
Summary of the invention
Technical problem solved by the invention is to provide a kind of environmental friendliness, and technique is simple, hybrid inorganic-organic solution-type water-resisting agent and preparation method thereof for the building material surface of water resistance excellence.
The technical problem proposing for solving the present invention, the technical solution adopted in the present invention is: hybrid inorganic-organic solution-type water-resisting agent for building material surface, it is characterized in that it is prepared from by silicate, organoalkoxysilane and water raw material Hybrid Heating, the shared parts by weight of each raw material are: silicate: 5-20 part, organoalkoxysilane: 5-10 part, water: 70-90 part.
Press such scheme, described silicate is a kind of in water glass, potassium silicate, or the mixture of two kinds, during mixing, be arbitrarily than.
Press such scheme, described organoalkoxysilane is one or more in methyltrimethoxy silane, propyl trimethoxy silicane, phenyltrimethoxysila,e, octyl group Trimethoxy silane, decyl Trimethoxy silane, Union carbide A-162, phenyl triethoxysilane, octyltri-ethoxysilane, tetraethoxysilane, trimethylethoxysilane, during multiple mixing, be arbitrarily than.
The preparation method of hybrid inorganic-organic solution-type water-resisting agent for above-mentioned building material surface, is characterized in that it comprises the steps:
1) by the shared parts by weight of each raw material, be: silicate: 5-20 part, organoalkoxysilane: 5-10 part, water: 70-90 part, choose silicate, organoalkoxysilane and water, standby;
2) after silicate, organoalkoxysilane and water are mixed, be heated to 70-100 ℃ reaction 1-8h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Hydridization solution-type water-resisting agent prepared by the present invention, can utilize the principle of infiltration to react with the free alkali generation in concrete, form crystal, fill up all small spaces in concrete, thereby become a part for concrete integral structure, thereby play the effect of sealing, waterproof, enhancing.
Beneficial effect of the present invention: (1) hydridization solution-type of the present invention water-resisting agent be take water as dispersion medium, not containing organic solvent, unharmful substance discharges, and is environmentally friendly product; (2) hydridization solution-type water-resisting agent of the present invention is colourless transparent solution, has improved the stability in storage of product when guaranteeing product water-repellancy; (3) preparation method of hydridization solution-type water-resisting agent of the present invention is simple, and production unit is conventional equipment, and all without the three wastes, produces in production process; (4) the use easy construction of hydridization solution-type water-resisting agent of the present invention, can adopt spraying or brush.(5) seepage force of hydridization solution-type water-resisting agent of the present invention is strong, can be penetrated into inside concrete and its formation one, has the long-term waterproof life-span, and water resistance is excellent.
Embodiment
In order to understand better the present invention, below in conjunction with embodiment, further illustrate content of the present invention, but content of the present invention is not only confined to the following examples.
Embodiment 1
Take 50g water glass, 50g methyltrimethoxy silane, 900g water and join in reaction flask, under 70 ℃ of conditions, stirring reaction 8h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 2
Take 200g potassium silicate, 100g propyl trimethoxy silicane, 700g water and join in reaction flask, under 100 ℃ of conditions, stirring reaction 1h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 3
Take 180g water glass, 80g phenyltrimethoxysila,e, 740g water and join in reaction flask, under 80 ℃ of conditions, stirring reaction 2h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 4
Take 160g potassium silicate, 60g octyl group Trimethoxy silane, 780g water and join in reaction flask, under 90 ℃ of conditions, stirring reaction 4h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 5
Take 130g potassium silicate, 50g decyl Trimethoxy silane, 820g water and join in reaction flask, under 80 ℃ of conditions, stirring reaction 4h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 6
Take 100g potassium silicate, 50g Union carbide A-162,850g water and join in reaction flask, under 90 ℃ of conditions, stirring reaction 4h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 7
Take 70g water glass, 50g phenyl triethoxysilane, 880g water and join in reaction flask, under 70 ℃ of conditions, stirring reaction 4h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 8
Take 60g water glass, 80g octyltri-ethoxysilane, 860g water and join in reaction flask, under 90 ℃ of conditions, stirring reaction 2h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 9
Take 150g water glass, 80g tetraethoxysilane, 770g water and join in reaction flask, under 90 ℃ of conditions, stirring reaction 2h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
The hybrid inorganic-organic solution-type water-resisting agent that embodiment 1-9 is obtained is tested the properties such as the solid content, compressive strength rate, depth of penetration, 48h water demand ratio of this product, anti-permeable pressure ratio, frost resistance, thermotolerance, resistance to acids and bases, tensile strength, steel bar corrosion by the terrestrial reference < < of Beijing contacting permeation type waterproof paint quality inspection and evaluation standard > > DBJ01-54-2001, the results are shown in Table 1.
According to said determination method, adopt and commercially available build the hybrid inorganic-organic solution-type water-resisting agent that golden water-resisting agent DPS replaces the present embodiment to prepare and process, measure respectively its properties and contrast.
Table 1 product performance test result
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Build golden DPS |
| Solid content, % | 10.1 | 29.8 | 26.2 | 22.1 | 17.9 | 15.3 | 11.2 | 13.7 | 22.5 | 12.6 |
| Compressive strength rate, % | 112 | 168 | 160 | 154 | 143 | 132 | 117 | 129 | 150 | 107 |
| Depth of penetration, mm | 4.3 | 6.5 | 6.3 | 6.0 | 5.7 | 5.5 | 4.8 | 5.1 | 6.1 | 3.2 |
| 48h water demand ratio, % | 39 | 20 | 23 | 27 | 29 | 33 | 38 | 35 | 25 | 53 |
| Anti-permeable pressure ratio, % | 350 | 480 | 470 | 420 | 400 | 390 | 360 | 370 | 450 | 300 |
| Frost resistance | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence |
| Thermotolerance | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence |
| Alkali resistance | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence |
| Acid resistance | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence |
| Steel bar corrosion | Non-corroding | Non-corroding | Non-corroding | Non-corroding | Non-corroding | Non-corroding | Non-corroding | Non-corroding | Non-corroding | Non-corroding |
< < contacting permeation type waterproof paint quality inspection and evaluation standard > > performance requriements is in Table 2
Table 2
| Project | Standard |
| Solid content, % | Company standard ± 5% |
| Compressive strength rate, % | ≥100 |
| Depth of penetration, mm | ≥2.0 |
| 48h water demand ratio, % | ≤65 |
| Anti-permeable pressure ratio, % | ≥200 |
| Frost resistance | -20 ℃ ~ 20 ℃, 15 times, surface is without efflorescence, crackle |
| Thermotolerance | 80 ℃, 72h, surface is without efflorescence, crackle |
| Alkali resistance | Saturated calcium hydroxide soaks 168h, and surface is without efflorescence, crackle |
| Acid resistance | 1% hydrochloric acid soln soaks 168h, and surface is without efflorescence, crackle |
| Steel bar corrosion | Non-corroding |
From table 1, to build golden DPS water-resisting agent and compare with commercially available, the hybrid inorganic-organic solution-type water-resisting agent of embodiment of the present invention gained: frost resistance, thermotolerance, resistance to acids and bases are all better, also can not cause rigidity corrosion, illustrates that water resistance of the present invention is excellent.Arbitrarily under solid content condition, water-resisting agent ultimate compression strength of the present invention, depth of penetration, anti-permeable intensity are all large than commercially available DPS, and 48h absorbed dose is than less.This explanation gained water-resisting agent of the present invention has better penetrating quality, can be penetrated into inside concrete and its formation one, has better water resistance.
Embodiment 10
Taking 25g water glass, 25g potassium silicate, 25g methyltrimethoxy silane, 25 g propyl trimethoxy silicanes, 900g water joins in reaction flask, under 70 ℃ of conditions, stirring reaction 8h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 11
Taking 25g water glass, 175g potassium silicate, 50g propyl trimethoxy silicane, 25g phenyltrimethoxysila,e, 25g octyl group Trimethoxy silane, 700g water joins in reaction flask, under 100 ℃ of conditions, stirring reaction 1h, after cooling, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 12
Taking 100g water glass, 80g potassium silicate, 20g Union carbide A-162,20g phenyl triethoxysilane, 20g octyltri-ethoxysilane, 20g tetraethoxysilane, 740g water joins in reaction flask, under 80 ℃ of conditions, stirring reaction 2h, after cooling, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
Embodiment 13
Take 50g water glass, 50g trimethylethoxysilane, 900g water and join in reaction flask, under 70 ℃ of conditions, stirring reaction 8h, cooling after, obtain hybrid inorganic-organic solution-type water-resisting agent (water white transparency) for building material surface.
The hybrid inorganic-organic solution-type water-resisting agent that embodiment 10-13 is obtained is tested the properties such as the solid content, compressive strength rate, depth of penetration, 48h water demand ratio of this product, anti-permeable pressure ratio, frost resistance, thermotolerance, resistance to acids and bases, tensile strength, steel bar corrosion by the terrestrial reference < < of Beijing contacting permeation type waterproof paint quality inspection and evaluation standard > > DBJ01-54-2001, the results are shown in Table 3.
According to said determination method, adopt and commercially available build the hybrid inorganic-organic solution-type water-resisting agent that golden water-resisting agent DPS replaces the present embodiment to prepare and process, measure respectively its properties and contrast.
Table 3 product performance test result
| ? | Embodiment 10 | Embodiment 11 | Embodiment 12 | Embodiment 13 | Build golden DPS |
| Solid content, % | 10.1 | 29.8 | 26.2 | 10.1 | 12.6 |
| Compressive strength rate, % | 112 | 168 | 160 | 112 | 107 |
| Depth of penetration, mm | 4.3 | 6.5 | 6.3 | 4.3 | 3.2 |
| 48h water demand ratio, % | 39 | 20 | 23 | 39 | 53 |
| Anti-permeable pressure ratio, % | 350 | 480 | 470 | 350 | 300 |
| Frost resistance | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence |
| Thermotolerance | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence |
| Alkali resistance | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence |
| Acid resistance | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence | Surface is without efflorescence |
| Steel bar corrosion | Non-corroding | Non-corroding | Non-corroding | Non-corroding | Non-corroding |
From table 3, to build golden DPS water-resisting agent and compare with commercially available, the hybrid inorganic-organic solution-type water-resisting agent of embodiment of the present invention gained: frost resistance, thermotolerance, resistance to acids and bases are all better, also can not cause rigidity corrosion, illustrates that water resistance of the present invention is excellent.Arbitrarily under solid content condition, water-resisting agent ultimate compression strength of the present invention, depth of penetration, anti-permeable intensity are all large than commercially available DPS, and 48h absorbed dose is than less.This explanation gained water-resisting agent of the present invention has better penetrating quality, can be penetrated into inside concrete and its formation one, has better water resistance.
Each raw material that the present invention is cited, and the bound value of each raw material, with and interval value, can realize the present invention; And the bound value of each processing parameter (as temperature, time etc.), with and interval value, can realize the present invention, at this, do not enumerate embodiment.
Claims (1)
1. hybrid inorganic-organic solution-type water-resisting agent for building material surface, is characterized in that it is made by following steps:
Taking 25g water glass, 175g potassium silicate, 50g propyl trimethoxy silicane, 25g phenyltrimethoxysila,e, 25g octyl group Trimethoxy silane, 700g water joins in reaction flask, under 100 ℃ of conditions, stirring reaction 1h, after cooling, obtain hybrid inorganic-organic solution-type water-resisting agent for building material surface.
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| CN103588502B (en) * | 2013-09-30 | 2016-02-24 | 安徽天馨纳米材料有限公司 | A kind of preparation method of high-permeability concrete surface silicate-silane protective agent |
| CN105036599A (en) * | 2015-06-25 | 2015-11-11 | 瓮安县瑞丰贸易有限公司 | Water glass waterproof agent and preparation method thereof |
| CN104944835A (en) * | 2015-06-25 | 2015-09-30 | 瓮安县瑞丰贸易有限公司 | Concrete waterproofer and method for preparing the same |
| CN107964353B (en) * | 2017-11-27 | 2020-05-19 | 固岩科技发展有限公司 | Surface waterproof protective agent and preparation and use methods thereof |
| CN109913006B (en) * | 2019-03-27 | 2020-09-01 | 北京建筑材料科学研究总院有限公司 | Building interface agent and preparation method and application thereof |
| CN111393183A (en) * | 2020-04-12 | 2020-07-10 | 长沙汇泉环境科技有限公司 | Method for removing granite water spots |
| CN113249032B (en) * | 2020-12-31 | 2022-02-25 | 厦门锶特材料科技有限公司 | Hydrophobic silica sol precursor composition and preparation method thereof |
| CN112961514B (en) * | 2021-02-09 | 2022-05-27 | 广东嘉宝莉科技材料有限公司 | Inorganic silicate as-cast finish concrete coating and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101250344B (en) * | 2008-03-26 | 2011-03-02 | 中国印钞造币总公司 | Antibiotic paint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101250344B (en) * | 2008-03-26 | 2011-03-02 | 中国印钞造币总公司 | Antibiotic paint |
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